Aperson with type o blood is often called the universal donor why might this be a good time to use to describe such a person

The friction red blood cells encounter when moving past each other. cardiac output: the amount of friction blood encounters during flow through blood vessels. blood pressure: the force of the blood against the vessel wall. blood viscosity: the volume of blood pumped out by one ventricle each minute.

One group of reptiles, characterized by the fossil ark metal x

What feature of cell theory is best demonstrated in the image